Well it arrived ahead of time that’s a  plus so that’s get a 10. It’s rated at 190 CFM which isn’t the highest rate for say anything smaller than say a 30 inch range top. But I have to admit it is doing very well and I’ll give that a  10 as well. But what will make it with the ladies I think is it isn’t the noisiest thing in the kitchen. It has a high and low speed toggle switch and a 75 max light bulb socket. I don’t think the wife misses the bulky microwave dust a grease catcher that has been replaced two times. In all fairness however I won’t mention the manufacturer by name, so to sum it up this over the range hood cost wise is a major winner performance is very good not sorry on the least with this purchase, I can’t say that about the appliance 2 to be exact that use to live in the same spot. I recommend this fan if you want to save money and get the best performance for your buck...